The Effects of Low Concentration Atropine on Pupil Size and Accommodation
A Study of Time and Dose-dependent Effect of Low Concentration Atropine on Accommodation and Pupil Size
1 other identifier
interventional
32
1 country
1
Brief Summary
The purpose of this study is to determine whether less frequent dosing of atropine drops may be as effective as daily dosing for the treatment of progressive myopia.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Jul 2016
Typical duration for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2016
CompletedFirst Submitted
Initial submission to the registry
July 27, 2016
CompletedFirst Posted
Study publicly available on registry
August 17, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 20, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
November 20, 2019
CompletedNovember 4, 2020
November 1, 2020
3.4 years
July 27, 2016
November 2, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Change in pupil size at 1 week
Measured at baseline and again 1 week after first using drop
Study Arms (2)
0.01% atropine daily
ACTIVE COMPARATORNightly dosing of 0.01% atropine
0.01% atropine twice per week
EXPERIMENTALAtropine dosed twice per week
Interventions
Dosing frequency comparison, using atropine sulfate 1% solution diluted to 0.01% and 0.05% by Leiter's Compounding Pharmacy
Eligibility Criteria
You may qualify if:
- Participants must have vision that is correctable to 20/20 in each eye
- Participants must also have normal binocular vision (no history of manifest eye turns or eye surgeries to correct an eye turn)
- Participants must have normal accommodation (amplitude and facility within a normal range based on the subject's age)
- Participants must have normal ocular health
You may not qualify if:
- Previous chronic use of atropine
- Participants who are pregnant, plan to become pregnant, or are breastfeeding
- Sensitivity or allergy to atropine
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
UC Berkeley, Department of Vision Science
Berkeley, California, 94720-2020, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Maria Liu, OD, MPH, PhD
UC Berkeley
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- OTHER
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 27, 2016
First Posted
August 17, 2016
Study Start
July 1, 2016
Primary Completion
November 20, 2019
Study Completion
November 20, 2019
Last Updated
November 4, 2020
Record last verified: 2020-11